Achievement Tracking

[QuinnBast]

Enhancement Description

Having a unique skillset with a particular specialist or gameplay mechanic is something you want to show off! Implement an achievement system. This system should be server-authoritative (ie. only the server can grant a player the completion of an achievement and this will only be done after a game is over).

Some ideas are:

• Calculated: Survive a combat with 0 drillers

• Turtle: Have 15 specialists at one outpost

• Nuclear: Harvest 200 Np in a game

• Soul Survivor: Be the only player alive in a game

• Omnipotent: See the entire map
  etc.

• Specialist specific achievements -- hire N times destroy X units with Y, etc. (add this once we implement specialists)

Solution

This could likely tie-in with #81 and share the same database table. Potentially make an ENUM of the possible achievements and a way to check the achievement against a completed GameState object. (Once stat tracking is in this should be easy)